* feat: add method to DownloadItem that allows customization of dialog options
* docs: add docs for get/setSaveDialogOptions
* add missing copy constructor for DialogSettings on mac and linux
* fix: don't filter dialog options for mas build, don't return properties
* test: add test for get/setSaveDialogOptions
* fix: remove openDevtools added for debugging
* test: fix failing test because of new event parameter
* docs: use SaveDialogOptions instead of Object
